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up vote 2 down vote favorite

I want to pass bitArray from my javascript file to my method in webApi

I create bitArray as below in my javascript file

 var myBits = new BitArray(2);
 myBits.setAt(1,false);
 myBits.setAt(2,true);

Then i call method in webApi which is as below

 public int ConvertArray(BitArray a)
    {
        //some logic
    }

I use Breeze to pass data to webapi, so i try to pass data as below

var query = EntityQuery.from("ConvertArray")
                  .withParameters({ a: myBits });
        manager1.executeQuery(query);

But when i put breakpoint in my webapi method i get blank data. But when i put breakpoint in javascript while i am passing data is get 2 records or i should say 2 bitArrays.

Does someone know how to pass bitArray to webapi?

Update 1

Here is how my bitarray looks like in my code BitArray

share|improve this question
    
What is your "JavaScript BitArray"? Looks like custom object of some sort... –  Alexei Levenkov Sep 3 at 17:17
    
@AlexeiLevenkov i am using custom object –  Happy Sep 3 at 17:31
1  
How does your json look like? –  L.B Sep 3 at 17:42
    
@L.B i have updated question –  Happy Sep 3 at 18:02
    
This might be completely off the mark, but maybe you will have to pass it as bit string to the web server and then convert it to a BitArray once you receive the string there. Just throwing out an idea... –  David Sherret Sep 3 at 18:09

2 Answers 2

up vote 2 down vote accepted

One possibility is to store the BitArray as a bit string before sending it to the server then convert it to a C# BitArray once the string reaches the server side.

Javascript

BitArray.prototype.toString = function() {
    this.m_bits.join('');
};

Use this method to make an array like [ 1, 0, 1, 0 ] change to the string 1010.

C#

BitArray a = new BitArray(bitString.Select(c => c == '1' ? true : false).ToArray());
share|improve this answer
    
I get undefined when i use prototype.toString –  Happy Sep 3 at 22:20
    
@Happy you need to define toString as a function of BitArray that returns the underlying number array as string of 1s and 0s. The above is an example and you would normally use it by doing something like myBits.toString(). Maybe you could post the code for BitArray? –  David Sherret Sep 4 at 2:07
    
I got this idea of bitarray from this stackoverflow.com/questions/6972717/… –  Happy Sep 4 at 6:38
    
It worked when i used myBits.toString. Many thanks. But can you explain me about code new BitArray(bitString.Select(c => c == '1' ? true : false).ToArray()); I didnt understood much –  Happy Sep 4 at 7:17
    
Pass in myBits.toString() to the server and change the ConvertArray function header to be public int ConvertArray(string bitString) to accept the string. Once you have that string you can plug in that c# code above to get a BitArray from the string. What that code does is loops over each character in the string and creates a new boolean array where 1 => true and 0 => false. It then passes this array to the BitArray constructor which creates a new BitArray based on the boolean array. –  David Sherret Sep 4 at 13:41
up vote 1 down vote

Breeze sends the query parameters in the URL, so they need to be serialized to a string. Your BitArray prototype needs to have a toString() method that serializes the bits in a way that your server can understand.

share|improve this answer
    
Can you tell how to do? –  Happy Sep 3 at 20:36

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